Apparatus for purifying water.



No. 657.470. Patented Sept. 4,1900. W. TWEEDDALE. APPARATUS FORPURIFYING WATER.

' (Application filed June 4, 1900.!

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UNiTED STATES PATENT- OFFICE.

WILLIAM'TWEEDDALE, 0F TOPEKA, KANSAS;

APPARATUSFOR URIFYING WATER.

srncIFIcATIoN formingpart of Letters Patent No. 657,470, dated September4, 19st.

Application filed June 4, 1900. Serial No. 19,017. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM TWEEDDALE, a citizen of the United States,residing at T0- peka, in the county of Shawnee and State-of Kansas, haveinvented certain new and useful Improvements in Apparatus for Softeningand Purifying Water and I do hereby declare the following to be a full,clear, and exact dc scription of the invention, such as will enableothers skilled in the art to which it appertains to make and usethesame.

My invention relates to apparatus for softening and purifying water.

One object of my invention is to change both the organic and inorganicsubstances which are in solution in the waterunder treatment to aninsoluble state, in which condition said substances will settle andcarry down all impurities, including bacteria.

A further object of my invention is to aerate the water, so that it maybe suitable for drinking purposes." 1

With these objects in view my invention consists in the construction andcombinations of parts, as hereinafter described and claimed.

In the accompanying'drawings, Figurel is a side view of my apparatus,including two settling-tanks, one of said tanks being shown in section.Fig. 2 is a top plan view of the same. Fig. 3 is a vertical centralsection of the combined oxidizer and aerator, and Fig. 4 is a horizontalsection of the same on the line A B of Fig. 3.

a, and b represent tanks. Near the bottom of each of these tanks is acombined filter and mixer. It is of course obvious that, if desired,-

more than one of these may be used injeach tank. The water which is tobe purifiedis supplied to the tanks through the pipe 0, provided with avalve g. This pipec has connected to it a vertical pipe 40, to which isconnected an air-pipe f, provided with a valve h. The pipe 40 is dividedinto branches '5 and j near the top of the tanks, one branch leading toeach tank. The horizontal branch 2' is provided with a vertical branchis, to which is connected a horizontal branch '12, which leads intothebottom of the filter and mixer 0.

It may be here said that the arrangement of the apparatus in the twotanks is the same,

so that the description for one will suffice for both.

Qcase having an imperforate top p. this is located a spiral s, composedof iron, and within the coils of this spiral are loosely packed piecesof coke. Perforated plates (1 ,rally settle to the bottom of the pipe. 5sludge-funnely is located in the tank I), which funnel is connected by asludgepipe 2 by means of the branch 3, provided with a valve The pipe70, near its upper portion, is provided with a valve, which is operatedby a float Z, the adjustable wheel m serving to prevent said float fromfalling too far.

When the tank I) is nearly full, the valve Zrising will cut off the flowof water through the pipe k.

The filter and mixer 0 consists of a closed Inside and 'r are locatedatthe top'and bottom, respectively, of this spiral. Anopen space isleftbetween said spiral and the wall of the filter and mixer 0. To thisspace are connected discharge-pipes u, provided with i bent ends 22,which pipes are fastened by clips w to the bottom of the tank 12. Adischargepipe 11 for the purified water, provided with branches 12 and13, in which are located valves 14 and 15, connects with the two tanks aand b. The pipe 12, inside of the tank b, is provided with a pivotalunion-joint 16, to which is attached the pipe 17, which carries thefloat'18 near its end. Thispipe 17 is supported, when in its lowest;possible position, by the brace 31. The object ofthis pipe andfloat-valve is to cut on? the flow of the water into the purified-waterdischarge pipe when- ;ever the level of the waterin' the tank 1) reachesa certain level, the purpose of this being to prevent the discharge ofimpure wa ter into the pipe 11, as the impurities natubranch 9, providedwith a valve 10, connects with the tank a. a i

The apparatus is designed when water is fed into the tank to have saidwater mixed with air and at the. same time to have it act as a condenserfor the exhaust-steam, which is delivered through the pipe (1. To thisend,

therefore, a small pipe or jet 0, connected with the pipe 0, extendsdownward into the e i l 657,478

vertical PiP itO sh t stan e belo th openingof the pipe d, as shown indette'd linesin Fig. 1. This causes the water supplied through the pipeto be projected downward with some force into the current of air or sudein. in t p p 40, resu ting in a thorough mixture of the water and airand in the condensation of the steam. The aeration is accomplished by asmall engine 29,: which operates anair-compressor 19, forcing airthrough the pipe f into the pipe 40, therey etin the wet'erehd e th semetiniel acting as an injector; The water is delivered to the pipe 0usually'by meansof a'pump 2 1, operated by a small engine '22,which-pump sucks the Water jf zom a even 24 through a p pe 2 p o idedwith-e ve reefi, 'whieh pies: conne with a h mica -measuring tank P ovid w th di eherge-valre 2 This by e e p p 29, pr v d d with e-ve vee watein t e an af e t ey filled, wet

pipe to w ch p pe 8 is eeh et d by means o e h e l -e -g ess sh wn) me-ybe pr d on t e u ide of the eheth eeh 1 measuring tank. I

' puritieswhich it is desired to removeagg the s kn w o conta n beialculate these reagents are put into the chemical-tank 2 7, In the wa eth wh eh I have actually eat- Perim ht d h a ts o .b emev d are usel deelth- The reegents orth e pu ties ar u ually el iiim and s idh h-y-xreteere. may else he add d it small whi h y ea t on w th v r oushydrates i h m y be. prese n the. water will form e;-e l n !s et e hydate which a ds m iquid A er t e qu r amount el r a ent ha e been put n oth ank the tank I) is filled with water, which passes h eiie he Pipes 0we is n, threug-h'thefilt r th ugh he pieed, so h the water wh eh pa sein o the fi s and mixerswill be ermend ,serete A t e ame tim h water asit is forced through the pipe 0 is also forced through the tank 27,carrying with it into the pipe 0 the chemical reagents in saidteehwater, the efore, es the z filter and mixer 0- is warm and chargedwith air and suitable chemical reagents. Under thei-nfl legiceofithematerials in the filter and mixer '0, which at the same time acts as afilter and to thoroughly mingle the air and watertege h meest ef theimpurities a e r moved, so that the water whic'h' passes into thetank bis eteeynearly pure. Some slight impurities, however, may escape throughthe filter and ere, and thesei purities seedlipip 3. Connec d. to t is'e-pe 23 isle b ehehr eliysettle :te :the-het-tom e the ank 12, beine-hieueeel-y and slowly sehehg through 1 th sledge-ithhnel y and di-sehrge-p pe 7 j Atte the tenhhss beeemefhl and the m eh mie l tenhi eehheetd with the pip peritiesin t e water eeeteined therein elf'lewed te-settle Pure water I -y be drew-i e Tepr de for tinu ng th eg tetien e'the hreiigh the Pi e 11 The tanks can e used successively the s taken mei tank at he points .32 and 33, wi-th valves 34 and 35 connected,by-Iheaes of p p 36 w t a t am-j pump 3 hieh" ees th w er hr ug he pipe38w the wet er-id ens heihg allow d t ettle while it is drawnofi'from-theother. Of course a esser eemher ef te ksthan e eu d the usedif the water inguestion is very impure led eileng timeli -ther-et reequired for-sed tetieet .i Ver ehs'ehenge ih the fo m and arran eeht fthe diitereht perts'ef the aepe etus Th pe eti ni as follows; Thewater-te be t a d e ng fir t ana yzed n d r tie d out the nature anameunt e the im- -igh-t he made wi hei tdeperting from th spirit of yhvehtiemen d l-wish it to be tinetly understood ha I do not lim t myetie the xeetdetei s sh nqhantity f ini e r egeh eq ired te p e p tet thev i s sa t th t are present. in solution and to neutralize the acidsoral? kalies in the volume of water which theitank Having thus describedmy invention, what lQ flilll, and d s e e eee by Let ent of the Un tedtates, 3*?

1. In en apparatus forsoftehihg and Puriifiy i g water, the eemhinetienof a settlin teekwith eeonihih d filt a d xe e sis ieg et tease, entreespiral, leeatedinisazidf ase and fil ering ma eriel held etween the al yime, m gnesia and iro in th term e t-.

su 'f end eerhehates, a ga ic matte n olution, h pre nce f whieh eaeseeia dn s n the water when sed r eshinaincrustatioh' eam-bo ers, end areeiil' ee ls ef-thespirm, su stan ially as des ibed.

2* In an appar tus i sefte ing endear tying htet, the eemhinet h o asett ngtank and combined filter and mixer-consist- ;hg e e eas ahzi ispiral euepe tedin a Ase, perforated plates: at each end lot said spi-e1 end filt riegineterial in the toils of, t

spira sehsteht s ly sde ribed, quantity of e ric lt, sneh as t e e e id;

appar tus fer fteni g a pu P ries water. theeerhhieet e11 of a ank and'e enibin dffilter and mixe o a ed i s i 7 te h, eensis ing of a ease,as e Spira 1ohen sl y the ol c i n of. impu itie iQ JhQ ested in saideas and ltering ma eri n the c ils of aid sp al end. m ans fordelivertieg the :wate te be puri ed t said filter a d m t en, substantialy as d r bed 45, l ehepeeret s -fersof e ing nd p i i-ying wa e thecombin ti n ef a tank, a to 'hed ilter endmix r-le edin said tankeeesistihg-e uter case an i on sp ralin IIS said e se filter ng mate ial eeted in the e eeil st said spira an per orated plates at st r 1% 5combined filter and mixer in said tank consisting of an iron spiralhaving filtering material in the coils thereof and means for deliveringamixture of air, water and steam to said filter and mixer, substantiallyas described.

6. In an apparatus for softening and purifying Water, the combination ofa tank provided with discharge and waste pipes, a combined filter andmixer in said tank consisting of an inclosing casing, an iron spirallocated in said casing, filtering material in the coils of said spiraland perforated plates at the ends of said spiral, means for deliveringmixture of air, steam and water to said filter and mixer, said aeratorbeing also provided with discharge-pipes leading into said tank,substantially as described.

7. In an apparatus for softening and purifying water, the combination ofa' tank provided with waste and discharge openings, a combined filterand mixer in said tank, consisting of an inclosing casing, a spiral insaid casing, filtering material in the coils of said spiral andperforated plates at .the ends of said spiral, and means for deliveringa mixture of water, steam, air and chemical reagents to said filter andmixer, substantially as described.

8. In an apparatus for softening and purifying water,the combination ofa water=pump, a chemical-tank, an air-pump and a steampipe, allconnected together, a settling-tank provided with waste and dischargeoutlets, a combined filter and mixer located in said settling-tank intowhich the Water to be purified is discharged and consisting of a closedouter casing provided with inlet and outlet pipes, an iron spiral,filtering material in the coils of said spiral and perforated plates atthe ends of said spiral, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM TWEEDDALE. Witnesses:

H. G. LARIMER, J. G. SLONECKER.

